-98.72% is the change from 860 to 11
Calculation steps:
[( 11 - 860 ) ÷ 860] x 100 = -98.72%
Formula
Percentage change = [(11 - 860) / 860] x 100
Subtract the new number by the original number
11 - 860 = -849
-849 ÷ 860 = -0.9872093023255814
-0.9872093023255814 x 100 = -98.72%